12820920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{15263}}^1$

素因数の和:15284

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 31139400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 15263, 30526, 45789, 61052, 76315, 91578, 106841, 122104, 152630, 183156, 213682, 228945, 305260, 320523, 366312, 427364, 457890, 534205, 610520, 641046, 854728, 915780, 1068410, 1282092, 1602615, 1831560, 2136820, 2564184, 3205230, 4273640, 6410460, 12820920]

約数ペア:

[(1, 12820920), (2, 6410460), (3, 4273640), (4, 3205230), (5, 2564184), (6, 2136820), (7, 1831560), (8, 1602615), (10, 1282092), (12, 1068410), (14, 915780), (15, 854728), (20, 641046), (21, 610520), (24, 534205), (28, 457890), (30, 427364), (35, 366312), (40, 320523), (42, 305260), (56, 228945), (60, 213682), (70, 183156), (84, 152630), (105, 122104), (120, 106841), (140, 91578), (168, 76315), (210, 61052), (280, 45789), (420, 30526), (840, 15263)]